Association between neighborhood walkability and GPS-measured walking, bicycling and vehicle time in adolescents
Association between neighborhood walkability and GPS-measured walking, bicycling and vehicle time in adolescents
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DOI：
10.1016/j.healthplace.2014.12.008
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发表时间：
2015-03-01
期刊：
影响因子：
4.8
通讯作者：
Sallis, James F.
中科院分区：
文献类型：
--
作者：
Carlson, Jordan A.;Saelens, Brian E.;Sallis, James F.
目的：探讨步行、骑自行车和开车时间与社区活力和总体力活动的关系。方法：来自美国两个地区380个活力高/低活力和收入水平的人口普查区组(N=690)。利用广义最小二乘法推导出居住区居住密度、交叉口密度、零售密度、娱乐密度和步行密度。步行、骑自行车和车辆的分钟/天时间是从应用于GPS的处理算法得出的。加速计估计每天中到剧烈的体力活动总量(MVPA)。结果：33%的受试者步行，43%的受试者积极出行，91%的受试者使用车辆。交叉口密度和邻里步行能力与步行、骑行呈正相关，与车辆行驶时间呈负相关。居住密度与步行呈正相关。结论：青年增加步行可有效增加体力活动总量。建筑环境调查结果表明，通过改善社区步行能力，有可能增加年轻人的步行能力。(C)2014爱思唯尔有限公司。保留所有权利，
Objectives: To investigate relations of walking, bicycling and vehicle time to neighborhood vvalkability and total physical activity in youth.Methods: Participants (N=690) were from 380 census block groups of high/low vvalkability and income in two US regions. Home neighborhood residential density, intersection density, retail density, entertainment density and walkability were derived using GlS. Minutes/day of walking, bicycling and vehicle time were derived from processing algorithms applied to GPS. Accelerometers estimated total daily moderate-tovigorous physical activity (MVPA). Models were adjusted for nesting of days (N=2987) within participants within block groups.Results: Walking occurred on 33%, active travel on 43%, and vehicle time on 91% of the days observed. Intersection density and neighborhood walkability were positively related to walking and bicycling and negatively related to vehicle time. Residential density was positively related to walking.Conclusions: Increasing walking in youth could be effective in increasing total physical activity. Built environment findings suggest potential for increasing walking in youth through improving neighborhood walkability. (C) 2014 Elsevier Ltd. All rights reserved,